Since we put our large telescope into operation, we have been working on setting up various peripheral systems that have to work together harmoniously. These are the automatic focus, the pressure in the air cushion...
Just like last year, pupils from Engelbert von Berg-Gymnasium in Wipperfürth visited us with their teacher David Dudziak to find out about our work and the opportunities on site. We discussed general questions about...
Astrophotographers collect as many photons as possible and therefore have to expose their images for a long time – or they use several telescopes simultaneously. We have three identical telescopes and cameras in...
The Dumbbell Nebula, Messier 27, in the constellation Vulpecula, is one of the most beautiful planetary nebulae in the northern night sky and is about 1,300 light years away. The nebula is the ejected gas shell of a...
The vast majority of amateur astronomers take photos of objects in the sky. This is more complicated than initially expected, as the raw data has to be processed extensively to achieve good results. Our club member...
On April 3, we hosted an exciting Girls’ Day that introduced seven schoolgirls to the fascinating world of astronomy. Under the motto “Astrophotography and image processing”, the participants immersed themselves...
… that fires the imagination with its thunderous storms and enormous cloud bands. Through a small telescope of 150mm aperture on the balcony at home, it appears as a glowing sphere surrounded by its faithful moons...
On March 29, 2025, numerous visitors experienced a fascinating natural a fascinating natural spectacle at the Waldbröl Observatory: the partial solar eclipse. partial solar eclipse. In glorious weather, the rare event...
In order to initiate a generational change and put the next generation in charge of the STScI e.V., our previous Chairman of the Board Thomas Eversberg was no longer available for re-election. At today’s Annual...
We have been working on the installation of our professional spectrograph for a few weeks now. Now we have installed the camera and carried out the first measurements. Due to the very high sensitivity of the optical...
… and since we make the most of every clear night, we have a warm control room for our telescopes in winter. So turn on the heating, connect the telescopes to the computer, put some hot tea on the table, put on...
Last November, a star of 8 to 45 solar masses exploded in the galaxy NGC 2146 in the constellation Camelopardalis. This happened around 46 million light years away from us. The galaxy is speeding away from us at almost...
